1972-1981

Configuration: Combo
Power: 100-135 Watts
Effects: Reverb, Tremolo

SCHEMATIC 

• Vibrosonic Reverb AA769

LAYOUT

• Front Panel: "Normal" In, In, Bright Switch, Volume, Treble, Middle, Bass - "Vibrato" In, In, Bright Switch, Volume, Treble, Bass, Reverb, Speed, Intensity - Master Volume, Pilot Light
• Back Panel: AC Outlet, Ground Switch, Fuse, Power Switch, Standby Switch, Speaker Jack, External Speaker Jack, Vibrato Jack, Reverb Jack, Reverb Out, Reverb In

CABINET 

• Dimensions: 20 x 26 3/4 x 10 5/8
• Tolex: Black
• Grill Cloth: Blue / White / Silver with Aluminum Frame (68-69), without Aluminum Frame (70-81)
• Logo: Grill Mounted, Raised, Chrome & Black Script
• Handle: Black Strap
• Feet: Casters
• Corners: Chrome Corners w/ Lip
• Knobs: Black Skirted w/ Chrome Center, Numbered 1 - 10
• Hardware: Large Chassis Straps 5 5/8'', 16'' Tilt-Back Legs

SPEAKER 

• Size: 1 x 15
• Impedance: 8 ohms
• Model: Fender PS-15 (72-74), JBL D-140F (74-79), Electro Voice (79-81) or Gauss 15 (For more info, check out the Mojotone Replacement Speaker Guide)

TUBES

• Pre amp: 2 x 12AT7, 1 x 12AX7A, 3 x 7025
• Power: 4 x 6L6GC
• Bias: Fixed with Bias Pot
• Rectifier: Solid State

Comments: Fender switched back to the Blackface era cosmetics some time in 1980. Vibrosonic Reverbs produced between late 1980 and 1981 have a black control panel and Black / White / Silver grill cloth. A Line Out jack, hum balance pot, and a pull boost sw. were added near the end of the models run.